Physics 173 Internet
Question of the Week
February 23 - February 27, 1998
For this week's search question you will visit a site titled
(http://www.askjeeves.com). Jeeves is the Internet butler who has
quite a talent for helping people find answers to questions. You
will ask Jeeves two questions and use his advice to find the
answers. The process is simple: 1) you type the question, 2)
Jeeves returns several URLs of pages on the Internet on which the
answer can probably be found, 3) you use the links to the
pages to find the answer. Jeeves is particulary gifted at finding
answers to specific types of questions. Some questions (such as
"What are the questions on Mr. Henderson's pop-quiz this Friday?")
do not typically yield intelligent answers. Good questions
to ask Jeeves include:
- What is a black hole?
- What is meant by curved space?
- Why do stars collapse?
- How many galaxies are there in the universe?
- What caused galaxies to form?
- What type of physics can be found in roller coasters?
For two points, use Jeeves to find answers to two questions (1
pt./answer). One of the questions can be one such as those found
above. The other question has to be one which you develop
yourself. To earn the two points on this search question, do the
- State the question as you asked it to Jeeves.
- Identify the page to which you went to successfully find
- Write the answer to the question.
- Repeat steps 1-3 for the second question.
- Have some fun with "Ask Jeeves" (and be sure to bookmark
the page for later use).
A 429-kg roller coaster car is mvoing at
25.0 m/s through the bottom of a near-circular loop. The radius
of the loop is 21.8 m. Draw a free-body diagram showing the
forces acting upon the roller coaster car at the bottom of the
loop. Use the diagram amd cicular motion equations to determine
the acceleration, net force and normal force acting upon the car.
South Physics Team -
4000 West Lake Ave
Glenview, IL 60025 - 1200
Page Maintained by: Tom Henderson
Last Updated: February 24, 1998